Finding the Fourth Proportional to 1,945.99, 2,685.47 and 1,061.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.99 : 2,685.47 = 1,061.77 : x
2. Step 2: Convert to fraction form
   1,945.99/2,685.47 = 1,061.77/x
3. Step 3: Cross multiply
   1,945.99x = 2,685.47 × 1,061.77
4. Step 4: Simplify right side
   1,945.99x = 2,851,351.48
5. Step 5: Solve for x
   x = 2,851,351.48/1,945.99
6. Step 6: Final answer
   x = 1,465.24